Window-screen.



? taining guides,-

UNITED STATES Tatented August 25, 19031 PATENT :OFF C HALF 'ro DANIEL M.. FRAWLEY, or SANTA ANA, CALIFORNIA.

WINDOW- SCREEN.

SPEGIFICATIQN forming partof Letters Patent No. 738,919, dated August 25, 1903.

Application filed March 81, 1903.

T0 at whwn-itrnay concern):

Be it known that LJ'OSEPH WALTER ADAMS, a citizen of the United States, residing at Santa Ana, in the county of Orange and State of California, have invented a new and useful Window-Screen, of which 'tion, efficient in operation, one in which the screen-sections are susceptible of a, slight relative longitudinal movement which admits of their ready manipulation for insertion into the window-casing, and one in which the secs tions will automatically expand longitudi- Rally for proper seating within the sash-re.-

"To these ends the invention comprises the; novel detailsof construction and combination of parts more fully hereinafter described.

In the-accompanying drawings, Figure 1' is .a side sectional elevation of a'screen constructed in accordance with my invention,

Referringto the drawings, 1 indicates one section of the screen," herein termedthe main section, and 2 the companion section,

which I term thefsecondary section. The

' frame of the main section consists'of a top bar 3, a bottom'bar 4, and end bars 6, as does also theframe' of the secondary section. The

I frame of eachsection is provided with and sustains the usual reticulated material 7.

8 and 9 indicate a pair of supplemental frame-bars which are secured tothe end bar 6 of the main screenssectio'n in any suitable manner. These supplemental frame-bars are mounted one at eachside of the screen-sec- -tion, are disposed transversely of the saine, and project a slight. distancebeyond the top" frame-bar 3 for the purpose presently. explained. The supplementalfrain'e-bars8 and l "9, which are spaced onefrom the otheradistance equal to the thickness of the frame-bar 6 in order to receive between them for slidunderstood sun: No. 150.428. (No a section for the purpose hereinafter explained,

each consists of an innerboard 10 and an outer board 11,equali n dimensions-and lying one upon the other. The inner face of each of 55 the-supplementalv bars 8 and 9 is provided with a pair of main grooves 12 and 13-, which are disposed transversely of the bars and terminate' short oftheouter edge of the same, a Where they are joined each by a supplemental. 6o angularlydisposed entrance groove 14 15,

-which forms a continuation of the main groove and extends to the outer edge of the bar. These grooves are situated one-near each end of each of the bars and receive for 65 sliding movement transverse pins 16 1'7,which project laterally from. opposite sides of the end bar 6 of the secondary screen-section 2. Thus the screen-sections are adapted for attachment one to theotherand for a rela- 7o tive longitudinal movement, as will be readily I The inner-faces of the supplee mental bars are further provided with tr'a'ns- .verse recesses 18 19, which receive, respec plemental bars and are normally expanded,

thus tending to force the secondary-screen-. section away from the main sectionto extend the screen as a'whole longitudinally. It-will 8o beapparent, however, that the screen-sections are susceptible of a movement for fcompressing the springs and shortening the screen as a -whole longi udinally. In order to permit of able distance, with its inner end bent at right angles to form a horizontal-finger adapted to 'be' grasped-by the operator while manipulating the'partst It is to .benoted that the 5 springs 20 21 are seated at their ends in suiting movement the end bar 6 of the secondary pins 16 17 abut for limiting the outward longitudinal movement of the secondary sec-- tion 2. I

In practice the sections are assembled by I inserting the pins 16 17 through the entranceeasing within the sashguides.- .VVhcn the tion longitmiinally inward toward the main grooves into the main transverse grooves, as will vbe readily understood. In this manner the screen-sections are inovably connected, and if it is'd'esired to insert the screen into a window the finger-piece 22 is grasped and manipula'm for forcing the secondary seesection against the action of the springs, and after the screen has been properly inserted the springs will, upon release of the fingerpiece, automatically extend the sections to cause the so; n to firmly engage the Windowscreen is in the window, the weight of the lat ter will be borne wholly by the supplemental I that I .do notlimit myself to the details herein shown and described,inasmuch as various minor changes may be made therein without departing from the spirit or. scope of my invention. For example, the supplemental bars may each consist of a single board and in- I stead of, the spiral springs herein shown being employed leaf -spr'ings may be substituted, and, in fact, a single spring may be used instead of a pairof springs, as herein described.

I Having thus described my invention, what I claim is- 1 In a screen ,the combinationwith ascreen-' section having a frame-bar provided with-4o grooves, of a companion screen-section provided with devices for engaging thegrooves, and a spring interposed between the sections.

2. Ina screen, the combination with a pair of screen-sections, of spaced supplemental frame-bars associated with the main section and provided with grooves, devices carried by the secondary screen-section for engaging with said grooves, anda spring interposed between the screenesections.

3; In a screen the combination with a main screen-section, of a pair of spaced supplemental bars associated therewith and; provided with grooves shouldered to form'stops,

a secondary screen section, devices carried thereby for engagement with the grooves, and a spring interposed between the screen-sec- 4:- In a screen,the combination with a screen section having a frame provided with grooves,

of a companion screen-section provided with devices for engaging the grooves, a fingerpiece associated with the latter section, and a spring interposed between the spring-sections. i

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

" JOSEPH WALTER ADAMS; Witnesses:

- O. M. ROBBINS, G. B. CHANDLER. 

